This happened recently...
..I was approaching a girl's toilet.
One girl came along..
..I told her that this is the men's toilet, & the ladies is over there.
Went into the ladies and instantly realized i'm an idiot.
Immediately, turn around and exit.
...That girl is standing outside. -.-"

Me and my friends were talking about this kid who walks around the locker room with his dick hanging out. My other friend goes, ''hahaha, how big was it?'' and was serious. I looked at him and silently walked away, shaking my head.

Another time, me and a buddy of mine, different buddy from previous post, were walking down the hallway when he goes, ''WHO'S THAT??'' checking out this chick from behind, pointing. I look and I go, ''That's a dude......''

Walked in on my sister having sex with her boyfriend when i was 11, thats pretty far up there. not sure if its the top answer though. Some of the embarassing things I've experienced should never be spoken of.

ALRIGHT,
so once upon a time, I was having a nice little get together at my house while my family was out of town. Needless to say there was much alcohol. A few hours into the night, people were already spewing chunks on my carpet, on my stairs, and in my kitchen sink. So I'm making my rounds, making sure everyone's okay, no one's breaking shit, whatever.
I have my OWN bathroom, because I'm cool. So I walk into there to get some wipes or something, and my best friend, who is not only a virgin, but is also the son of a pastor, is just having a great ol' time with the girl from down the street on my sink. Cool. So I leave, and as I'm about to go back downstairs, I hear Ariela scream. So I go back to the bathroom to check. My friend had puked. All over her.
She went home, and he spent the rest of the night by the toilet.

ALRIGHT,
so once upon a time, I was having a nice little get together at my house while my family was out of town. Needless to say there was much alcohol. A few hours into the night, people were already spewing chunks on my carpet, on my stairs, and in my kitchen sink. So I'm making my rounds, making sure everyone's okay, no one's breaking shit, whatever.
I have my OWN bathroom, because I'm cool. So I walk into there to get some wipes or something, and my best friend, who is not only a virgin, but is also the son of a pastor, is just having a great ol' time with the girl from down the street on my sink. Cool. So I leave, and as I'm about to go back downstairs, I hear Ariela scream. So I go back to the bathroom to check. My friend had puked. All over her.
She went home, and he spent the rest of the night by the toilet.

When I was talking to my friend about a girl just yelling she was pregnant at my moms work party in class.
When I said, 'She just yelled right there I'm pregnant.'
The class all got quiet when I said 'I'm pregnant.'
Everyone in my class asked about my baby and how far I was.
.-.

At school a kid I don't know complimented my drawing, and he just randomly went, "We should draw together sometime, naked." --" I had to walk out before I became violently tsundere and beat his face into the ground.

we had this classroom with a divider in the middle. the divider was so rickety that i could see some of the people in the other side. my friend was busy with a project and i had nothing to do so i waved to a guy from the other side. he slipped a note to me later and was asking for my name. i never replied. when i got out, he was waiting for me outside. and so was my boyfriend. it was awkward for me since the guy really did wait for me to go out. only to find out that i had a boyfriend.

My mom was so happy that she said she bought me a Channel Dress for it was discounted. She said, the moment i saw that dress i think of you right away knowing my baby will really look beautiful wearing it. I am so happy and grateful, for i love the cloth and the design and Mom bought it most especially.

When i worn it a gala of our forum for some big named clients. I saw someone wearing the same out fit as mine and i do not have time to alter or put a scarf or whatever just to be different for both of us where on the stage now to give our appreciation speech so when, they announced her name first...i was like OH MY GOD! OTOKE...AIGOO... Then my name followed...so the audience starting to sigh and smile i knew why...so i started my speech by...saying Madam i love your dress it completely suits you and she was a sport and a woman as well she stood up and gave me a stood clap which made the rest of the crowd LAUGH

Tough call. I once walked in on my housemate having sex in the kitchen, that was pretty bad. Then again the time she walked in to find me drunk, without any pants on, watching Shoujo Sect on the couch was pretty bad too.